Using live templates
Aspects, as you already know, modify the code during compilation, but let your source code intact. Live templates, by contrast, transform your source code, within your editor. After you apply a live template to a declaration, you can edit the code that has been generated. Live templates are a one-off. Unlike aspects, if the author of the live template modifies the code generation rules after you applied the template to your source code, your source code will not be modified.
You can use live templates from the refactoring menu, also named the lightbulb or screwdriver menu.
Step 1. Add a project or package reference
Like aspects, live templates are declared in projects or NuGet packages that you add as references to your project.
The first step is to add the aspect library to your project using a
<ProjectReference> or a
<PackageReference>. This step brings the aspect to the refactoring menu. You can remove the reference after the operation if needed.
If you only use live templates from this project, consider using the
PrivateAssets="all" option so reference does not impact other projects consuming your project.
Step 2. Apply the live template
- Position the caret on the name of the declaration on which you want to apply the aspect.
Click on the lightbulb or refactoring icon, and choose to Apply live template.
Choose the aspect that you want to apply
The author of the live template can customize the appearance of the live template in the refactoring menu. It may be under a different menu item than Apply live template.